Apparatus for removing sediment from steam-boilers.



PATENED .1.

- l 'P -HULBURL APPARATUS POR REMIOVING SBDIMBNT PROM STELW. BGILBRS..

APPLICATION FILED JUNE Z4. 1907.

,MESE

No.18`Q5l82. PATBNTBD AUG. 4, 1908.

""2 P. HUL'BURD. Y n APPARATUS FOR REMOVING SEDIMBNT FROM STEAM BOILERS. APPLICATION HLLBD JUNI: 24, 1907. A

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Wgr/Qua,- @wlw/mfom 'i (WIM PERCY HULBURD, OF LONDOX, BXGLXD.

APPARAIUS FOR REMOVING SDHYUSNT PROX .-SIEAIiI-BOILERS.

Specification of Letters Paten;

Application filed `lune 24, 1907. Serial No. Eil'li.

T o all Awhom. it' may concern: A

Be it known that I. Pnnc IlULnifaD, a subject of the King of Great-Britain, residing at 150 Lcadenhall street, London, England,

have invented new and useful Improvements in Apparatus for Removing Sediment from Steain-Boileis, of which the following is a specification.

My invention relates to mechanical boiler cleaning apparatus of the kind described in the speciication of formel' United States Letters Patent Xo. 632,735 of 1899 wherein the use of draw-ofi heads is described, each of which is forinedwitli a series oi' inclined openings through which the scum or other inipnrities are renioved or blown off. I'Iithcrto these draw-oil heads have been made rigid and have had to be specially adapted to the particular situations in which they are to be fixed.

The. object of inv invention is to provide an apparatus which may he readily adapted to any desired shape or contour according to the position in which it is to be placed and to this end in v invention consists in the use of llexible draw-of`f heads.

In )ractice I malle use of spirally wound metallic tubing and I provide for attaching to or forming upon the convolutions thereof nozzles ha ving inclined openings which correspond with the openings hitherto cast in the draw-olf heads. 'ith this arrangement it will be undeistood that the draw-ofi` head can be made of any desired length and bent in any desired manner according to requirements.

To enable niv invention to be fully understood I will describe the saine by reference to the accompanying drawings, in which:

Figure 1 is a sectional plan of a locomotive fire box provided with my improvedsediment remover, and Fig. 2 is a seetionalside view of the saine. Fig 3 is a sectional view of a nozzle. Fig. 4 is a sectional plan of a. coinbincd joint and nozzle shown in F ig. 1 drawn to an enlarged scale, and Figs. 5 and 6 are respectively an end view and a longitudinal section of one portion of the saine. Fig. 7 is a view similar to 5 of another portion of the said joint- Figs. S and 9 are respectively an end elevation and a longitudinal section of an end nozzle. Fig. 10 is a side view of the draw-oll` connections. and Fig. 11 is asection on the line 11-11. Fig. 10.

a, b indicate the Iwo walls of the lire box and c, c are ilexible tubes which are inserted into the space "etween the said walls, the said tubes being antageouslv niade of spirally wound met: f: iubing and having fixed upon them a servi of nozzles oi' draw-afi` licadsd each of which as on the underside a. nozzle e which fornisa foot for supporting the tube and which has an inclined nionth f through which, when the tubes are open to the atmosphere b v ablow-ofl cock the sediment will be discharged with the water by the pressure of s scribed in the renner specification.

It will be understood that a llexible pi Je, rovided with a series of nozzles as herein eore described an be placed in a boiler in positions in w. s ii would not be possible to iiisert rigid dinars-eli heads, the flexibility of the pipe permitting of its being pushed around angles or ce; ers or beneath stays or other obstructions- The nozzles 'i' can be slipped on to the pi )es as shown in F o and brazcd or soldere in position, an s errture being eutiii the said pipe oppos e to each nozzle to allow the iquid to enter the pipe. If desired, however, the nozzles can be connected by short lengths of pip In a case n re the suction pipe has to be introduced in o a boiler in sections (as, 'for instance, in trie arrangement shown in Fifi. 1) which are afterwards connected 'in situ it is necessaiivte employ angle connections, and I prefer ther hese connections should be combined w the nozzles. Such a conibined nozzle s -i junction piece is shown at d in I? ig. 1 is illustrated in an enlarged scale in Figs 6 and 7. This fitting coinprises a sinf1 with a nozzle of the kind hereinbefore 4rioed. the said socket being formed at tl: id with a. clip piece g into which the i of the bend can' be inserted, as L l v shown in Fig. 4, the two pa-ts being s :sequently united by a pin or The ends e. :se pipe are advantageously and conneci b v a junction piece d of the kind above @.ieseiibed.

in is a tit v ihrough which the draw-off is ell'ected. *itung is applied to the pipe Patented Aug. 4, 19081.l

ini within the boiler, as de4 sog I i g l;

before the latter is introduced and is, as

shown, internally screw threaded, so that when ity has been brought opposite to the i erture in the shell of -thfenbox it may bie ixed by screwing into it a nipplein aman-A ner which will be clearly understood by reference to Figs. 10 and 11.

It will be understood that the arrangement of the 'fitting will he .varied according to requirements to suit the particular boiler to which my' invention is to be applied.

Having now particularly described and ascertained the nat-ure of my said invention and in what manner the saine is to be performed, I declare that what I-claim isz- 1. An apparatus for removing sediment from steam boilers comprisiiw a lexibletube, nozzles provided at intervzs in said tube through which the sediment may be drawn and means for dischargingr the sediment outside of the boiler, substantially as described.

2. A11 apparatus for removing sediment from steam boilers comprising flexibletubing, a plurality of nozzles provided at intervals in said tubing, Said nozzles having inclined apertures, through which the sediment may be drawn from tzhe boiler, and means for discharging same from the boiler, substantially as described.

3. An apparatus for removing sediment from steam boilers comprising flexible tubing, downwardly projecting nozzles provided on said tubing and adapted to support the same, whereby sediment may be drawn from the boiler and means for discharging same 

